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Variable valve timing (vvt) is the process of altering the timing of a valve lift event in an internal combustion engine, and is often used to improve performance, fuel economy or emissions.

To get an idea of how quickly today's engines move, look no further than the variable valve system Read more at car and driver. Vvt is a system designed to adjust the timing of an engines valves to optimize performance and lower emissions throughout the engines entire operating range Variable valve timing (vvt) is a clever piece of automotive technology that optimizes engine performance and allows for better fuel efficiency in vehicles It works by continuously (variably) adjusting the timing of the valves for better fuel economy, emissions, and power output. Discover how variable valve timing (vvt) technology improves your car engine performance, fuel efficiency, and power output

Learn the basics and benefits explained simply. Here's an example of how variable valve timing works — if the vvt increases the valve duration of the exhaust valve, then more exhaust is expended from the cylinder. Variable valve timing changes when the engine’s valves open and close to improve power, fuel efficiency, and emissions This system involves parts like the camshaft, timing chain, and electronic controls working together to adjust valve timing based on engine speed and load. So, variable valve timing (vvt) adjusts the opening times and lift of the valves, to suit all operating conditions This ensures ideal charge cycles, within a wide range of engine speeds and loads

Fuel consumption and emissions are reduced, while torque and smoothness are increased.

The variable valve timing systems are seen in the internal combustion chamber of an engine It does the job of changing the timing of a valve’s opening and closing and works together with the valve lift system.